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详细介绍全液压SWD165型潜孔钻机推进及回转液压系统的组成及工作原理,通过对供油系统的选择及其工作特性的分析,说明了采用恒功率恒压控制的液压柱塞泵不仅适合潜孔钻机的工况特点,而且能在很大程度上降低能耗。阐述推进与回转液压系统的设计原理,总结系统采用的泵控马达系统设计方案的优点以及该系统其它各部分的功能。进一步说明该液压系统推进及回转回路的之间具有反馈控制的特点,能减少卡钻现象的发生及当形成卡钻后具有自动处理卡钻现象的功能,具有较高的自动化水平,提高了工作效率,并能起到保护设备的作用。工程实际应用表明,使用全液压控制的推进及回转系统的潜孔钻机操作性能优良、能耗低、作业效率高、能较好地满足工程施工的需要。
The composition and working principle of hydraulic propulsion and slewing hydraulic system of full hydraulic SWD165 DTH drilling rig are introduced in detail. The selection of hydraulic system and the analysis of its working characteristics show that the hydraulic piston pump controlled by constant power constant pressure is not only suitable for potential Hole drilling machine operating conditions, but also to a large extent reduce energy consumption. Describes the design principles of propulsion and slewing hydraulic system, summarizes the advantages of the design of pump-controlled motor system adopted by the system, and the functions of other parts of the system. Further illustrates that the hydraulic system has the characteristics of feedback control between the propulsion and the rotary circuit, can reduce the occurrence of the stuck-in phenomenon and has the function of automatically processing stuck-and-stuck phenomenon after the formation of a stuck-on-drill, has a higher level of automation and improves the work Efficiency, and can play a protective role in equipment. The practical application of the project shows that the DTH drilling rig with fully hydraulic controlled propulsion and slewing system has excellent operation performance, low energy consumption and high operation efficiency, which can better meet the needs of engineering construction.